ALLEN — FOSSIL CETACEANS FROM FLORIDA 145 
The cetacean remains consist of fragments of the skull or vertebrae, 
and though for the most part badly broken, seem to have suffered as 
much from rough handhng during extraction as from actual erosion, 
since they are chiefly such pieces as chanced to have been rescued in 
the course of mining the phosphate. Exact data as to the original 
relations of the specimens in the deposit are therefore unobtainable. 
SPECIES REPRESENTED 
At least three species of cetaceans, pertaining to as many genera, 
are represented by the material in hand. Two of these are dolphins 
of the slender-beaked type common in Miocene deposits of Europe, 
and related to the existing Iniidse of estuarine and fluviatile habitat. 
Of these, one seems referable to the genus ScMzodelphis, first recognized 
as occurring in America by True (1908); the other is a related genus 
for which a new name is proposed. It is peculiar in that the lower 
tooth rows close, proximally at least, within the upper, instead of 
interlocking. What seems to be a species of the same genus is present 
as well in Miocene formations of Europe, though the Florida species 
is more progessive than the European, and appears to represent the 
culmination of its line of evolution. The third species falls in the 
PhyseteridsB or sperm-whale family. It is a whale of medium size, 
apparently congeneric with a species — Diaphorocetus poucheti — de- 
scribed from the Miocene of Patagonia. Like that species, it differs 
from existing members of this family through the possession of a rostrum 
rather narrow basally and provided with fully functional teeth in the 
upper as well as in the lower jaw. 
An account of these fragments follows. 
INIIDiE — River dolphins 
Schizodelphis depressus sp. nov. 
Plate 9, fig. 1-5 
1869. ? Priscodelphimis grandaevus Leidy, Journ. Acad. Nat. Sci., Phila., ser. 
2, vol. 7, p. 434 (in part). 
1904. ? Rhabdosteus latiradix Case, Md. Geol. Surv., Miocene, p. 24 (in part), 
pi. 15, fig. 1 (not of Cope). 
1908. ? Priscodelphinus spj True, Proc. Acad. Nat. Sci., Phila., p. 28, fig. 1-3. 
Type . — A fragment of the beak, 828 Fla. Geol. Surv., about 283 mm. in length, 
broken off in advance of the vomer; found five miles south of Bartow, Florida. 
General characters . — A long-beaked dolphin of the Schizodelphis type, but 
